I'm relatively new to brewing, and as such I want to pick your brains a little regarding my next brew. For my fourth ever batch, I would like to brew a beer that closely resembles Founder's Breakfast Stout (Founders Breakfast Stout). I found a clone recipe online, written by the brewer from Founders, but I've made a couple tweaks to it (mostly a reduction in the hops from 60 IBU's to 25, in order to more closely match Founder's).

I have a few questions.
1) Any recipe critiques?
2) Will I still get usable sugars from the grains if I put them in a grain bag and steep them in 2 gallons of water at ~155C for an hour? Is that considered a partial mash?
3) What do you think about adding cinnamon sticks or vanilla beans (or both) to the secondary?